//------------------------------------------------------------------------------------------------
// The MIT License (MIT)
// 
// Copyright (c) 2019 Crsky
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//------------------------------------------------------------------------------------------------

#include "base_types.h"
#include "listen_server.h"
#include "file_system.h"
#include "command_line.h"
#include "engine.h"


//------------------------------------------------------------------------------------------------
// Implementation
//------------------------------------------------------------------------------------------------
class CListenServer : public IListenServer
{
public:
	CListenServer();
	CListenServer( const CListenServer& ) = delete;
	CListenServer& operator=( const CListenServer& ) = delete;
	~CListenServer();

public:
	virtual int Run( intptr_t instance, const wstring& root_dir, const wstring& command_line ) override;

private:
};

//------------------------------------------------------------------------------------------------
// Constructor
//------------------------------------------------------------------------------------------------
CListenServer::CListenServer()
{
}

//------------------------------------------------------------------------------------------------
// Destructor
//------------------------------------------------------------------------------------------------
CListenServer::~CListenServer()
{
}

//------------------------------------------------------------------------------------------------
// Run listen server
//------------------------------------------------------------------------------------------------
int CListenServer::Run( intptr_t instance, const wstring& root_dir, const wstring& command_line )
{
	// Initialize file system
	if ( FileSystem()->Init( root_dir ) == false )
		return 0;

	// Initialize command line arguments
	CommandLine()->InitFromString( command_line );

	int result = 0;

	// Initialize the game resource, graphics, sound, etc.
	// create game window
	if ( Engine()->Load( false ) )
	{
		while ( true )
		{
			// Check quit action
			if ( Engine()->GetQuitAction() != IEngine::QuitAction::Nothing )
			{
				if ( Engine()->GetQuitAction() == IEngine::QuitAction::Restart )
				{
					// Require the launcher rerun the engine
					result = 1;
				}

				// Quit the main loop
				break;
			}

			// Run the engine frame, processing input, update state, etc.
			Engine()->Frame();
		}

		// Release the game resources, shutdown graphics, sound, etc.
		// destroy game window
		Engine()->UnLoad();
	}

	// Shutdown file system
	FileSystem()->Shutdown();

	return result;
}

//------------------------------------------------------------------------------------------------
// Returns the singleton interface of the listen server launcher
//------------------------------------------------------------------------------------------------
IListenServer * ListenServer()
{
	static CListenServer listen_server;
	return &listen_server;
}
